Pregnancy after Prosthetic Aortic Valve Replacement: How Do We Monitor Prosthetic Valvular Function during Pregnancy?

Table 1

Serial echocardiogram measurements through gestation.

Echocardiographic parameters
Gestational age	Heart rate (bpm)	Peak velocity (cm/sec)	Peak gradient across valve (mmHg)	Mean gradient across valve (mmHg)	Pulse wave velocity time integral (m)	Dimensionless index
Prepregnancy	63	274.2	30.1	18.4
20 weeks	61	360.5	52	28.9	31.2	0.36
32 weeks	69	386.9	59.9	36.1	35.7	0.43
37 weeks	76	339.3	46.1	22.6	29.2	0.45
Postpartum day 1	63	325.8	42.5	25.3	26.7	0.36